<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
    <div id="app">
        <!-- v-on 绑定事件  -->
        <!-- 可以简写  v-on === @ -->
        <button  v-on:click="fn">点我</button>

        <button  @click="fn1">点我1</button>
    </div>

    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
    <script>

        new Vue({
            // 元素
            el: "#app",
            // 定义的数据(状态)
            data: {
                message: "数据"
            },
            // 存放函数
            methods: {
                fn() {
                    console.log(123)
                },
                fn1() {
                    console.log(456)
                }
            }
        })
    </script>
</body>
</html>